Published
Specifies the essential dimensional characteristics of a spark-plug type used with spark ignition engines. Tabulates major, pitch, and minor diameters for plug thread and connector thread. A figure illustrates shapes and reference quantities of concern.
Revises
ISO 3412:1979
PUBLISHED
ISO 3412:1992
90.93
Standard confirmed
Jun 17, 2021
Road vehicles — Screened and waterproof spark-plugs and their connections — Types 1A and 1B
60.60 Standard published
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